476 Systematic Paleontology 



Description. — Leaves small, 2 to 4 cm. in length by 1.25 cm. in breadth, 

 ovate in outline, vs^ith an acute apex and a broad, slightly decurrent base. 

 Margin with small, shallow, dentate teeth. Midrib slender. Secondaries 

 numerous, parallel, branching from the midrib at an angle of about 

 40°, their ultimate disposition not made out. 



This species is very rare in the Federal Hill collections and is readily 

 distinguished from the other species of this genus by its general outline 

 and by its marginal characters. 



Occurrence. — Patapsco Formation. Federal Hill (Baltimore), 

 Maryland. 



Collection. — ^U. S. National Museum. 



Celasteophyllum parvifolium (Fontaine) Berry 



Saliciphyllum parvifolium Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 303, pi. clxxii, fig. 5. 

 SalicipJiyllum ellipticum Fontaine, 1890, Ibid., p. 303 (pars). 

 Gelastrophyllum trooTcense Fontaine, 1890, IHd., p. 305, pi. clviii, fig. 8; pi. 



clix, fig. 7. 

 Gelastrophyllum hrookense Fontaine, 1906, in Ward, IMd., vol. xlviii, 1905, 



p. 505, pi. ex, fig. 10. 



Description. — Leaves of variable size, 2.5 cm. to 12 cm. ( ?) in length 

 by 1.3 cm. to 5.*5 cm. in greatest width which is about half way between 

 the apex and the base. Outline broadly elliptical, with apex and base 

 somewhat abruptly and about equally acute. Margin entire. Petiole 

 and midrib stout. Secondaries about 5 or 6 pairs, branching from the 

 midrib at a rather wide angle (over 45°) and rather straight in their 

 course, camptodrome. Leaf texture coriaceous. 



This species which is of somewhat doubtful botanical affinity is based 

 on uncommon and rather fragmentary remains confined to the Patapsco 

 formation. 



Occurrence. — Patapsco Formation. Near Wellhams, Anne Arundel 

 County, Federal Hill (Baltimore), Maryland; 72-mile post and Hell 

 Hole, Virginia. 



Collection. — U. S. National Museum. 



